Expanded timing between gear trains of differentials

Details Expanded timing between gear trains of differentials Expanded timing between gear trains of differentials

1991-09-24

1993-01-12

Braun, Leslie A.

Planetary gear transmission systems or components

Differential planetary gearing

Planet pinion is worm gear

475344, 475904, F16H 138

Patent

active

051785870

ABSTRACT:
A gear differential having multiple gear trains interconnecting a pair of output shafts is provided with an arrangement of gearing having an expanded relationship between tooth numbers of the gearing for fitting the gear trains into mesh. The gearing includes two side gears (20 and 21) coupled to respective output shafts and three pairs of combination gears (24 and 25, 26 and 27, and 28 and 29) for interconnecting the two side gears. Each of the combination gears includes a middle gear portion (40) and two end gear portions (42 and 44). The middle and end gear portions have respective numbers of teeth that share a greatest common factor (GCF) that is more than one but less than the number of teeth in the middle gear portion.

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